Transcript for Bombing Suspect's Former Classmate: 'He Was a Great Kid'

Should someone on the phone right now also new show car Stephen Collins as on the -- -- making him -- here to tell us -- -- car. So I met them when I wouldn't demonstrated in -- just a great kid he was -- to be around. Very studious very Smart I don't remember a time when he was ever having trouble in school it's great athletes. Straight personal hero. So that the seven craze about how long ago was that what year was that. That would. About 2006. And you knew him straight through straight through middle school and high school. Yeah. What more can you tell us about what he liked what he did did he ever express any kind of political sympathies in any way at all. You don't -- were we stupid play. She didn't. Enjoy the be -- war since I understand. The war in Iraq the war in Afghanistan. Yeah. And what what else did he say about that. Not much like we don't really talk about a much. The only time I've ever really came up with whom -- we're learning about it in the school. And did so and I am -- right to assume that you never got a sense for him that he was angry. At the United States or might take some kind of violent action. No he was. Q -- had a positive attitude. Did you know -- other. I didn't know his brother. What else did you know about his family his father's mother or any other relations he might have. Not -- mean there's anything I don't know much about it surely. And then when you saw these photos you knew it was him. -- -- I didn't really know what the biggest search. Didn't recognize it and committed. About your convention record -- with them. And then sort of look at in my ear hook who thought erected and then there he was. They're surprised. -- -- at the bottom line right here and you just that it is -- -- there -- nothing -- ever saw him saying do in any way shape -- form that would give -- the idea. That he could carry out an operation like this. Never. Okay Steve Owens thanks very much that is certainly chilling indeed and we know so many people now 625000. People in the Boston area. Are on lockdown millions more in the surrounding areas.

This transcript has been automatically generated and may not be 100% accurate.

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